<template>
<div id="root">
  <div class="todo-container">
    <div class="todo-wrap">
      <NoteHeader @addTodo='addTodo'/>
      <NoteList :todos='todos' :checkTodo='checkTodo' :deleteTodo='deleteTodo'/>
      <NoteFooter :todos='todos' @checkedAllTodo='checkedAllTodo' @clearAllTodo='clearAllTodo'/>
    </div>
  </div>
</div>
</template>

<script>
import NoteHeader from "./components/NoteHeader.vue";
import NoteList from "./components/NoteList.vue";
import NoteFooter from "./components/NoteFooter.vue";

export default {
  name:"App",
  data() {
    return {
      todos:[
        {id:'01',content:'xxxx',finish:true},
        {id:'02',content:'yyyy',finish:false},
        {id:'03',content:'zzzz',finish:false},
      ]
    }
  },
  components:{
    NoteHeader,
    NoteList,
    NoteFooter,
  },
  methods: {
    // 添加
    addTodo(todoObj){
      this.todos.unshift(todoObj)
    },
    // 勾選
    checkTodo(id){
      this.todos.forEach(todoObj => {
        if(todoObj.id === id) {
          todoObj.finish = !todoObj.finish
        }
      });
    },
    // 刪除
    deleteTodo(id){
      if(confirm('确定删除？')){
        this.todos.splice(this.todos.findIndex(todo => todo.id == id), 1)
      }
    },
    // 全選
    checkedAllTodo(done){
      this.todos.forEach(todoObj => {
        todoObj.finish = done
      });
    },
    // 刪除已完成
    clearAllTodo(){
      this.todos = this.todos.filter((todo)=>{
        return !todo.finish
      })
    }
  },
}
</script>

<style>
  /*base*/
  body {
    background: #fff;
  }

  .btn {
    display: inline-block;
    padding: 4px 12px;
    margin-bottom: 0;
    font-size: 14px;
    line-height: 20px;
    text-align: center;
    vertical-align: middle;
    cursor: pointer;
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.2), 0 1px 2px rgba(0, 0, 0, 0.05);
    border-radius: 4px;
  }

  .btn-danger {
    color: #fff;
    background-color: #da4f49;
    border: 1px solid #bd362f;
  }

  .btn-danger:hover {
    color: #fff;
    background-color: #bd362f;
  }

  .btn:focus {
    outline: none;
  }

  .todo-container {
    width: 600px;
    margin: 0 auto;
  }

  .todo-container .todo-wrap {
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 5px;
  }
</style>